Hackernews posts about Quad9

Quad9 is a fast-growing public Domain Name System (DNS) provider that aims to offer an alternative to traditional DNS services by providing a free and open platform for users worldwide.

1. Shutting down our public encrypted DNS servers and sponsoring Quad9 instead (mullvad.net)
   5 points by Cider9986 13 days ago | 1 comments
2. Mullvad Shuts Down Public Encrypted DNS Servers and Sponsors Quad9 Instead (digitalescapetools.com)
   2 points by xabd 11 days ago | discuss
3. Ask HN: Was Quad9 ECS down for anyone else today at UTC 1PM?
   2 points by opengrass 20 days ago | discuss
4. Shutting down our public encrypted DNS (mullvad.net)
   483 points by mywacaday 12 days ago | 265 comments
5. An open DNS recursive service for free security and high privacy (quad9.net)
   135 points by mooreds 12 days ago | 39 comments
6. Mullvad migrating to Q9 for encrypted DNS (mullvad.net)
   4 points by matrix8967 13 days ago | 1 comments
7. Python sets and dictionaries can have quadratic-time performance (lemire.me)
   113 points by ibobev 8 days ago | 65 comments
8. Python sets and dictionaries can have quadratic-time performance (lemire.me)
   7 points by usdogu 13 days ago | 1 comments
9. Java's String.indexOf can be slow (quadratic) (lemire.me)
   3 points by mfiguiere 25 days ago | 1 comments
10. GT-BN98 Quad-Band WiFi 8 (802.11B) Gaming Router (rog.asus.com)
    3 points by doener 17 days ago | discuss
11. China's MiniMax sees revenue nearly quadruple in first half as AI demand surges (www.reuters.com)
    3 points by tartoran 21 days ago | discuss
12. I made an autonomous quadcopter for safely capturing drones over prisons etc. [video] (www.youtube.com)
    3 points by avolare 22 days ago | discuss
13. Python sets and dictionaries can have quadratic-time performance (lemire.me)
    2 points by signa11 10 days ago | 1 comments
14. Show HN: Mapping where a quadruped RL policy fails, with a live probe (poissonlabs.ai)
    2 points by taykolasinski 27 days ago | discuss
15. Java's String.indexOf can be slow (quadratic) (lemire.me)
    1 points by surprisetalk 15 days ago | discuss
16. Spanda: Sub-microsecond LLM epistemic uncertainty in Rust
    17 points by liquidngas 5 days ago | 2 comments
17. Show HN: BAIhAIs – an autonomous art school for AI agents (baihais.com)
    5 points by demonstrandom 20 days ago | 2 comments
18. How to Detect Residential Proxies
    4 points by jwally 5 days ago | 1 comments
19. Show HN: MeScript, music programming language inspired by Lisp (quadracollision.com)
    25 points by vegnus 12 days ago | 1 comments
20. Drone simulator in Arduino serial monitor (kimsalmi.com)
    3 points by infr88 16 days ago | discuss
21. Ask HN: Does Gusto drop dependents randomly for anyone else?
    1 points by QuadmasterXLII 7 days ago | discuss
22. Woe Is Em: The Sad Lifecycle of an AI Tell (stevekrause.org)
    1 points by quadtree 24 days ago | discuss
23. DNS Provider Quad9 Sees Piracy Blocking Orders as "Existential Threat" (torrentfreak.com)
    268 points by gslin 10 months ago | 116 comments
24. Top DNS domains seen on the Quad9 recursive resolver array each day (github.com)
    160 points by speckx about 1 year ago | 97 comments
25. Quad9 DOH HTTP/1.1 Retirement, December 15, 2025 (quad9.net)
    103 points by pickledoyster 10 months ago | 61 comments
26. Quad9 Enables DNS over HTTP/3 and DNS over QUIC (quad9.net)
    69 points by itchingsphynx 6 months ago | 17 comments
27. Quad9 – A public and free DNS service for a better security and privacy (www.quad9.net)
    63 points by janandonly over 1 year ago | 30 comments
28. French Piracy Blocking Order Goes Global, DNS Service Quad9 Vows to Fight (torrentfreak.com)
    36 points by latexr almost 2 years ago | 22 comments
29. Quad9 Enables DNSSEC on All Service Endpoints (quad9.net)
    11 points by bernd289 5 months ago | discuss
30. Quad9 9.9.9.9 DNS queries *from Germany* slow today
    3 points by oriettaxx 8 months ago | 3 comments
31. DNS4EU, DNS0, Quad9: review of European public DNS resolvers (blog.frehi.be)
    2 points by amai about 1 year ago | discuss
32. Show HN: CDNs – A simple Go CLI to switch DNS servers in one second (github.com)
    1 points by unsorted2270 7 months ago | discuss
33. What Happens When You Interfere with the Infrastructure of the Internet (quad9.net)
    7 points by fodmap about 1 year ago | discuss
34. When Enforcing Copyright Starts Breaking the Internet's Plumbing (quad9.net)
    5 points by HotGarbage 10 months ago | discuss
35. DNSSEC NTAs: No Good Compromises (quad9.net)
    2 points by Velocifyer 6 months ago | discuss
36. An open DNS recursive service for free security and high privacy (quad9.net)
    2 points by doener over 1 year ago | discuss
37. QuadRF can spot drones and see WiFi through my wall (www.jeffgeerling.com)
    754 points by speckx 2 months ago | 236 comments
38. Why does kinetic energy increase quadratically, not linearly, with speed? (2011) (physics.stackexchange.com)
    381 points by ProxyTracer 3 months ago | 215 comments
39. Israel escalates attacks on medics in Lebanon with deadly 'quadruple tap' (www.theguardian.com)
    308 points by tcp_handshaker 5 months ago | 230 comments
40. Quadlet: Running Podman containers under systemd (mo8it.com)
    298 points by gjvc over 1 year ago | 68 comments
41. An interactive intro to quadtrees (growingswe.com)
    222 points by evakhoury 7 months ago | 30 comments
42. Subterranean fungi networks more than 100 quadrillion km in length (www.theguardian.com)
    188 points by tosh 3 months ago | 45 comments
43. Podman Quadlets with Podman Desktop (podman-desktop.io)
    180 points by teleforce over 1 year ago | 85 comments
44. Cannabis use associated with quadrupled risk of developing type 2 diabetes (medicalxpress.com)
    161 points by geox about 1 year ago | 98 comments
45. The quadratic sandwich (fedemagnani.github.io)
    147 points by mbustamanter 4 months ago | 15 comments
46. Bilinear interpolation on a quadrilateral using Barycentric coordinates (gpuopen.com)
    143 points by mariuz over 1 year ago | 34 comments
47. Functional Quadtrees (lbjgruppen.com)
    140 points by lbj 10 months ago | 49 comments
48. Expensively Quadratic: The LLM Agent Cost Curve (blog.exe.dev)
    131 points by luu 7 months ago | 81 comments
49. Why quadratic funding is not optimal (jonathanwarden.com)
    119 points by jwarden over 1 year ago | 96 comments
50. Show HN: Quadratic – native JavaScript support in a spreadsheet (www.quadratichq.com)
    112 points by Manchego79 almost 2 years ago | 48 comments
51. Quadrupling code performance with a "useless" if (purplesyringa.moe)
    112 points by birdculture 2 months ago | 29 comments
52. Functional Flocking Quadtree in ClojureScript (www.lbjgruppen.com)
    103 points by lbj 9 months ago | 12 comments